20212909 is an odd 8-digits prime number following 20212908
and preceding 20212910 . In scientific notation, it is written as 2.0212909 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20212908 positive integers (up to 20212909) that are relatively prime to 20212909.
20212909 has 2 divisors, whose sum is 20212910
The reverse of 20212909 is 90921202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred twelve thousand nine hundred nine
Scientific notation
2.0212909 × 10^7
Engineering notation
2.0212909 × 10^6
Prime Factorization
20212909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20212909
Product of the distinct prime numbers
The prime factorization of 20212909 is 20212909.
Since it has a total of 1 prime factors.
2 , 3 , 74 , 9 , 393 , 748 , 9817 , 3161 , 67117 , 35820 , 871 , 664386 , 7092563 , 4589947 , 47398544 , 73994049 , 731324728 , 866611896 , 1042892532 , 6054664878
n×2
40425818
n×3
60638727
n×4
80851636
n×5
101064545
n÷2
10106454.5
n÷3
6737636.3333333
n÷3
5053227.25
n÷5
4042581.8
n2
408561690242281
n3
8.2582202657534E+21
n4
1.6692265473363E+29
n5
3.3739924301693E+36
2 √n
4495.8768888839
3 √n
272.40157037598
4 √n
67.051300426493
5 √n
28.915170943759
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20212910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10106455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4495.8770000969
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999010533
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20212909 can be divided by 2 positive divisors.
The sum of these divisors (counting 20212909) is 20212910, the average is 10106455.
Base
System
Value
2
Binary
1001101000110110010101101
3
Ternary
1102000220220021
4
Quaternary
1031012302231
5
Quinary
20133303114
6
Senary
2001122141
8
Octal
115066255
10
Decimal
20212909
12
Duodecimal
6929351
16
Hexadecimal
1346cad
20
Vigesimal
666c59
36
Base36
c18dp
md5
f97b320c60caba455b3999db29b222f0
sha1
30ab5bce8a85dfc52cdf8a4d76acf1c8a74bdb57
sha256
d86f57d5be4585766b706018fba4b7b41fe689d2019f4e1166614ea67a4b30db
sha512
354f6c26041dd30f0fd9a583021ed936582c0db9fbb199f0c93ac2ae8a1b1fe1b8e1303d7da945989b6cc989c9b9bd50b34cbc8958f98b1691d824200df73fc4
ripemd-160
2b0e3e5979667309ef2f784f75f9a94fa05598c8
Diameter
40425818
Circumference
127001452.84416
Area
1.2835344046034E+15
Volume
3.4591952158156E+22
Surface area
5.1341376184135E+15
Circumference
127001452.84416
Perimeter
80851636
Area
408561690242281
Diagonal
28585370.042813
Surface area
2451370141453686
Volume
8.2582202657534E+21
Space diagonal
35009785.356766
Perimeter
60638727
Area
1.7691240138146E+14
Altitude
17504892.678383
Surface area
1.7691240138146E+14
Volume
9.7324059174107E+20
Height
9528456.6809377